摘要 |
<p>The invention provides an improved, efficient adiabetic pressure swing adsorption process for separating gas mixtures, using a multiplicity of adsorption zones, each zone in a sequential order and in a fixed overlapping with other zones undergoing cycles in a number of stages, including adsorption under high pressure, depressurization via its outlet, depressurization via its inlet, purging from outlet to inlet and repressurization via its outlet, in conjunction with one or two columns, filled essentially with an inert and non-porous packing of high void fraction.</p> |